<!DOCTYPE html>
<html>
<head>
    <meta charset="UTF-8">
    <title>model</title>
    <style>
        *{
            margin: 0;
            padding: 0;
        }
        .bord{
            border: 1px dashed #ee2602;
            width: 90%;
            margin: 20px auto;
        }
        .title{
            font-size: 20px;
            font-weight: bold;
            margin: 20px;
        }
        .introduce{
            font-size: 16px;
            margin: 0 0 20px 50px;
        }
        .red{
            color: red;
        }
    </style>
</head>
<body>
<div class="bord">
    <div class="title">单元格</div>
    <div class="introduce">
        <table width="400" border="1">
            <tr>
                <td colspan="5">&nbsp;</td>

            </tr>
            <tr>
                <td colspan="2">&nbsp;</td>
                <td colspan="3">&nbsp;</td>
            </tr>
            <tr>
                <td colspan="4">&nbsp;</td>
                <td colspan="1">&nbsp;</td>
            </tr>
            <tr>
                <td colspan="2">&nbsp;</td>
                <td colspan="2">&nbsp;</td>
                <td rowspan="2">&nbsp;</td>
            </tr>
            <tr>
                <td colspan="4">&nbsp;</td>
            </tr>
            <tr>
                <td>&nbsp;</td>
                <td>&nbsp;</td>
                <td>&nbsp;</td>
                <td>&nbsp;</td>
                <td>&nbsp;</td>
            </tr>
        </table>
    </div>
</div>
</body>
</html>